| I find my ZHP more responsive since doing the Shark injector and adding my aFe CAI but in a week when I add my Sprint Booster the car will be much more fun to drive. Well worth the money I spent to get all three
The CAI by itself really doesn't do much except for the sound which I like. If you are looking for more hp gains then you have to do a tune, CAI, and exhaust and even that won't give you lots...but for daily driving I think the best bang for the buck will be felt with the Sprint Booster. I have heard from many who already have it saying I will really love it. Give me about two weeks since I'll be adding the Sport Button mod to my Sprint Booster and I will get back with my impressions.
2004 TiAg ///M l OEM CSL Interior Door Panels l OEM CSL Bootlid l CSL Center Console | Nav s/w v32 | LCM s/w 4.5 One-Touch Triple Blink | OEM Black Interior retrofit | BC Racing BR Coilovers l BMW Performance Carbon Fiber Strut Bar/SSK/Cross-Drilled Rotors l Gruppe M CAI l BMW iPod/Sirius Integration l Alu Tech interior Trim l Lit F10 ///M5 Shift Knob l Umnitza Orion V4 A/E's l One piece 1x1 cf CSL lip | BBS CH & ARC-8 wheel sets
Last edited by cak323i; 11-27-2012 at 10:47 PM.